A study on the conceptual design of carbodies with shell type sections for weight reduction using the material substitution technique

쉘형 단면을 가진 차체구조의 소재대체 경량화를 위한 개념설계 연구

In this paper is studied a theoretical approach to predict structural performances and weight reduction rates of a carbody with shell type sections in case that its materials have to be substituted. For the material substitution design of a carbody, bending, axial and twisting deformations are considered under constant stiffness and strength conditions, which utilizes some new indices derived from a structural point of view. The developed indices to measure the weight reduction by the material substitution give good guidelines on conceptual design of carbodies.